found: Work cat: Playmobil® durchleuchtet: wissenschaftliche Analysen und Diagnosen des weltbekannten Spielzeugs, 2014.
found: Playmobil website, viewed 30 September 2015(Geobra Brandstätter Stiftung & Co. KG - headquartered in Zirndorf, Germany - is the producer of Playmobil; the 7.5 cm tall Playmobil figure is the cornerstone of this creative toy system; since its launch in 1974, 2.8 billion Playmobil figures have been produced)
found: Encyclopaedia Britannica:under Hans, Beck (Beck Hans German toy designer who created the Playmobil toy figures and hundreds of accompanying buildings, vehicles, animals, and other accessories; in 1974, toy manufacturer Geobra Brandstätter GmbH & Co. KG. introduced his 7.5-cm Playmobil figures, which featured simple smiling faces, movable arms, legs, waists, and hands; and interchangeable accessories intended to stimulate imaginative play in children aged four and up)
found: Scott, Sharon M. Toys and American Culture: an encyclopedia, 2010:p. 243 (Playmobil toys made their debut in Germany in 1974 with three play themes --knights, construction workers, and Indians)